45078319 has 16 divisors (see below), whose sum is σ = 54198144. Its totient is φ = 36943200.

The previous prime is 45078307. The next prime is 45078323. The reversal of 45078319 is 91387054.

It is a cyclic number.

It is not a de Polignac number, because 45078319 - 2⁵ = 45078287 is a prime.

It is a super-2 number, since 2×45078319² = 4064109687731522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45078359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484 + ... + 9814.

It is an arithmetic number, because the mean of its divisors is an integer number (3387384).

Almost surely, 2^45078319 is an apocalyptic number.

45078319 is a deficient number, since it is larger than the sum of its proper divisors (9119825).

45078319 is a wasteful number, since it uses less digits than its factorization.

45078319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7398.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 45078319 is about 6714.0389483529. The cubic root of 45078319 is about 355.8955607243.

The spelling of 45078319 in words is "forty-five million, seventy-eight thousand, three hundred nineteen".